BFN ~ missed period?

Kelly
Hi AF was due yesterday nothing came and nothing so far. I have taken a test and negative :( 
I feel my most my period symptons have gone, (bad cramping last Thursday onwards) still have tender breasts.
I've never missed a period my cycles are between 32/34 days long
Had a chemical in November but even then my period came on time?
What do I do? Make an appointment with the Doctor?
Thanks